Free course · Lesson 2 of 5
Advanced Excel Functions & Visualization
In this lesson you will
- Calculate totals and counts by condition
- Choose a suitable chart
With clean data in hand, Excel's analytical functions and charts turn raw numbers into visible patterns a business can act on.
SUMIFS/COUNTIFS: Sum or count with multiple conditions, e.g. total sales for "Juba" AND "March."- Charts: Line charts for trends over time, bar charts for comparing categories, pie charts sparingly for simple proportions.
- Sparklines: Tiny in-cell charts that show a trend at a glance within a table, useful for compact reports.
- Choose the chart type based on the question being answered, not by what looks most decorative.
Practical Skill: Use SUMIFS to build a region-by-month sales summary
table from raw transaction data, then chart it as a line chart showing the trend per region.
=== SUMIFS EXAMPLE ====SUMIFS(SalesAmount, Region, "Juba", Month, "March") Adds sales where Region = "Juba" AND Month = "March" === REGION-BY-MONTH SUMMARY (built with SUMIFS) === Region Jan Feb Mar Juba 120,000 135,000 142,000 Wau 80,000 95,000 88,000 Malakal 60,000 58,000 70,000 Chart choice: Line chart with Month on the x-axis and oneline per region — clearly shows the trend for each regionover time, which a bar chart per month would make harderto compare.
Practice exercise
Use SUMIFS to total sales for each branch, calculate each branch's share of the total and show the result in a sorted bar chart.
Key takeaways
- SUMIFS and COUNTIFS answer 'how much' and 'how many'
- Growth divides by the earlier value
- Chart titles should state the finding
Free self-study lesson — no certificate. For the full instructor-led program, see registration options.